My 2017 Sienna just hit 60,000. Had to replace the Battery which died with no warning. Dead, Dead. What else should I be doing? All oil changes are up to date. What about the Tranny?
wow, plugs at 60k. Far cry from the 110k on the 2011.The 2017 uses the new D4S engine which calls for spark plug changes at 60K miles I think.
As for the transmission, I would recommend do a drain and refill, but make sure you follow the proper process to ensure you have the correct amount in the transmission. These trans are very finicky about correct fluid level from what I have read.